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清晨，安安背着橙色小背包走出小区。路边飘着一层灰尘，她问妈妈：“洒水车为什么一路喷水？”
One morning, An'an walked out of her neighborhood with her orange backpack. A veil of dust floated by the curb. She asked Mom, “Why does the water truck spray water all along the road?”
城市汽车小队 · 4-8 岁
洒水车为什么一路喷水
给城市街道洗个清爽澡
科普启蒙约 7 分钟4-8 岁中英双语
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洒水车用恰到好处的水帮助道路降尘、清洁；爱护城市也要珍惜每一滴水。
A water-sprinkling truck uses just enough water to clean roads and settle dust. Caring for a city also means saving every drop.
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